
Identifying specific constituent codes of polar codes that can be decoded efficiently without traversing the decoding tree [1]}, [2]}, [3]}, [4]}, [5]}, [6]}, [7]}, [8]}, [9]}, [10]}, [11]}, [12]}, [13]}, [14]}, [15]}, [16]}, [17]};

Checking the syndrome of the constituent codes of polar codes to avoid traversing the decoding tree when the syndrome check is satisfied [18]}, [19]}, [20]};

Adjusting the code to increase the number of specific constituent codes of polar codes [21]}, [22]}, [23]}, [24]}, [25]};

Comparing the error probability of constituent codes of polar codes with a threshold to avoid traversing the decoding tree when the error probability is small [26]}, [27]}.

